Question

Check whether 876 and 345 are divisible by 3 or by both

Answer 1

Answer:

Step-by-step explanation:

Take 876

We add all this three numbers together for check divisibility. If these no equal to 3,6 or 9, it divisible by 3.

876; 8+7+6=21

2+1=3

So 876 is divisible by 3.

345; 3+4+5=12

1+2=3

This also divisible by 3.

Both numbers are divisible by 3

Answer 2

$<b><i><u>Answer :</u>$

Given, “876” and “345” two numbers.

Need to find out they are divisible by 3 and also their difference divides 3 should be found out.

⇒ sum of the digits of 876 is 8 + 7 + 6 = 21 is divisible by 3.

⇒ sum of the digits of 345 is 3 + 4 + 5 = 12 is divisible by 3.

⇒ difference of 876 and 345 = 876 -345 = 531

⇒ Sum of the digits of 531 = 5 + 3 + 1 = 9 is divisible by 3.

Hence, 876 and 345 are divisible by 3 and the difference between them is also divisible by 3.